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Skipping tokens while recovering errors in the generated parser

This commit is contained in:
Robin Jadoul 2017-01-19 13:06:23 +01:00
parent 4b1b0ab9e0
commit b777ffc52d
1 changed files with 7 additions and 0 deletions
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7
templates/c++/lr.h
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@ -150,6 +150,13 @@ Value {{name}}<Value>::parse() {
stateStack.push(TABLE[stateStack.top()][verr] >> 2); stateStack.push(TABLE[stateStack.top()][verr] >> 2);
valueStack.emplace(std::move(errorVal)); valueStack.emplace(std::move(errorVal));
while (tok != {{name}}_Symbol::T_EOF && (TABLE[stateStack.top()][static_cast<std::uint64_t>(tok.symbol)] & 0x3) == ERROR) {
tok = lex();
}
if ((TABLE[stateStack.top()][static_cast<std::uint64_t>(tok.symbol)] & 0x3) == ERROR) {
throw SyntaxError("Syntax error: could not recover");
}
} }
break; break;
case SHIFT: case SHIFT: